3801720 has 64 divisors (see below), whose sum is σ = 12287520. Its totient is φ = 935424.

The previous prime is 3801709. The next prime is 3801731. The reversal of 3801720 is 271083.

It is an interprime number because it is at equal distance from previous prime (3801709) and next prime (3801731).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342 + ... + 2778.

Almost surely, 2^3801720 is an apocalyptic number.

3801720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3801720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6143760).

3801720 is an abundant number, since it is smaller than the sum of its proper divisors (8485800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3801720 is a wasteful number, since it uses less digits than its factorization.

3801720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464 (or 2460 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 3801720 is about 1949.7999897425. The cubic root of 3801720 is about 156.0726157658.

The spelling of 3801720 in words is "three million, eight hundred one thousand, seven hundred twenty".